Refugium Build

ReefArtist

In Memoriam
Hello everyone. I'm going to need some help with my refuge/sump (refugium and sump) build so I thought I would reach out here locally. I presently have a 65g reef tank up and operating but found that my refuge/sump has a small leak somewhere. I don't want to fix the acrylic system because it was old and not safe to use. Here are my planning stages and the questions I would like answered before starting. I'm hoping everyone will help me through this.
First, I need to figure out the proper size required for the tank it will be attached to. With that said, I'll also have to take into consideration the space available for the refuge/sump in my stand.
I used the RC sump calculation tool and found that I need to handle approx. 6g of overflow for the size of tank and the placement of my returns (Back flow). I believe what this means is that I'll need to have the area above my highest point handle at least 6g of extra water with the pumps off.
I've heard that the larger the refuge/sump area, the better. The system now is 24in L x 16in H x 12in D. I have room for a 5g jug for my refill system and, since it just fits, I think I'll stick with that basic footprint. I would prefer it shorter though, more like 12 - 14 inches. My skimmer hangs on the side now and it's hard to see the skimmate cup. If it were lowered viewing the cup would be much easier to see and remove when needed.
Secondly, I need to consider what will be put in my refuge/sump and what I want to accomplish by having it. I’d like three sections: Return (water going back to tank), input (water coming from tank) and refugium areas.
My Input area (water coming from tank) will be for mechanical filtration. I'll be using a 1 micron sock that is I think about 12” long and 6”+ across. My return area (water going back into the tank) will have a Quiet One 3000 pump and the area will need to be as clean as possible. The refugium area will be for copepods and other food for Mandarins. Whatever is necessary to raise copepods will be contained in this area. The refugium will also provide additional biological filtration so it will have a deep sand bed (DSB). I’m considering incorporating algae such as Caulerpa or set up algal turf scrubbers (ATS) for additional nitrification/denitrification.
Here is my basic layout for my refuge/sump. My input area which will be 6” wide, 12” deep and 10 inches high should be large enough to handle the filter bag. The return area needs to be large enough to hold my pump (Which it is). The refugium area I think is large enough to raise food for my future mandarins but not sure and was hoping someone with experience would give me some advice on this.
I only have routed teeth on the baffle between the refugium and the return area. This should help keep any snails and algae from entering the return area. I don’t believe I need the routed teeth between the input and return area because of the filter bag.
I have 3 baffles between the input and the return area to remove bubbles â€"œ I hope this is going to work. My skimmer will hang off the input wall (Corallife which is rated for 125G tanks). This has a pump so the input area must accommodate this also.




13222365G_Refugium.jpg
 
ReefArtist,

I like your stretch. Very nice!!

Maybe I missed this, but how do you get feed water to your refugium? I was thinking maybe you could send the output of your skimmer to your refugium area.

Good luck. Looks like it is going to end up being a nice setup.

Cheers,
Chris
 
Gunter, that's a good point and one that I haven't worked out yet. Right now my setup is Return/Refugium/Input. I have my skimmer pump in the input area and the output of the skimmer is in the refugium area. Works good for the skimmer setup but after talking to mflamb it's not a good design to get the most out of your refugium/sump. If it will work I'll try to have the pump in the input area and the output in the return area, but the input/outputs are not movable on the skimmer so . . . Does anyone think it would be "OK" to have my skimmers input and output in the same area? I know it wouldn't be very efficient, might keep skimming the same water over and over. Any ideas?
 
I like everything about the design. I do have one thing to think about. Make sure the water depth around the skimmer is within manufacturers specs. Otherwise great!
 
Thanks mflamb, yes these skimmers are very touchy when it comes to water depth. They are very adjustable which does make it nice. Their bubble reducer really works for me but again the depth does make a difference. Once I get to adding the skimmer to the sump I can show everyone how to adjust the height, but my concern will be the placement of the input and output of the skimmer. Now that I'm going with the spaflex PVC, I might turn the sump 180 degrees. It then would put the skimmer in the right direction - that might be the solution. I'll have to look at the plumbing and make sure that will work. I don't want to make any mistakes on this build - right!?1?!
 
ReefArtist,
Have you considered an above tank refugium? I know is hard astetically, but very beneficial to have a seperate fuge from the sump. This allows for pods and critters to naturally flow back into the main tank w/o being shredded by your pump's impellars. Just thought I would throw that out there, but I am sure you have already considered. Nice webpage that got me inspired for my 1st refugium... http://www.geocities.com/Heartland/Valley/3389/reeftank/refugium.html
 
Hey plyle02 - I'll take a look, that is a great idea. I haven't cut the acrylic, it's just on order so I could change things up if it looks like I could possibly work it in. My garage is right behind the tank and I could always work it into the design :D.
 
pyle02...testing has shown that a majority of pods make it to the tank alive after passing through the pump. The dead ones will be eaten anyway.
 
I am with you mflamb, I have macro algae slugs that get into my tank and still are alive, just know that mandarins can be very picky eaters, and sometimes will only take to live pods. Just an alternative. I find refugiums to be quite fascinating, I like the refugium to be a part of the show, and spend just as much time viewing it as I do the main tank. Just personal preference...lol...
 
I agree about the part of the show thing. My stand will have glass doors in front of the fuge. My fuge is 39 gallons and I want it to look cool and be functional.
 
Yeah mflamb, That is a beauty you have going there, I applaud the thought and planning behind that masterpiece, I wish I could afford to do such a thing....lol... Well, when you are up and running, I should have some frags ready.....also some chaeto......stuff is growing like mad...keep us posted on the 390 build thread....
Perry
 
I agree that is a great link - I'm still reading and studying the concept. Might not work this time, but it's a keeper as far as future ideas.
 
Hey I guess it's is a good design or at least popular :D. I just took a look at his build, I can see a bubble problem in the water flowing from the refuge to the return area. It might be just because that is where he has the hose - but I do need to look at that. I'm not going to add the extra around the top - I'm using 1/4" acrylic and I think that would be over kill.
 
You will want to adjust the flow in the fuge so the flow out of the fuge flows down the divider baffle, not over it. That level of flow will prevent bubbles from going into the return section. Excess bubbles in the fuge can be resolved with a square corner section filled with rock rubble. That's where the fuge supply pipe goes in.
 
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